ID3 Tags Qt

jdbastardy

I am working on a player for mobile phones running Symbian s60v5 adn s^3 devices.

I am using a database for storing infos about the songs and then retrieve them by request. However I need a solution to parse my id3v2 tags. FOr id3v1 there is no problem since it is a simple format. However how about v2? I thounght about id3lib but it seems it is not available for Symbian.

Any Suggestions? Can I find a lib written for Qt to parse id3?

goetz

No way to compile id3lib yourself for Symbian? It seems to be a C++ lib, so it should not be too hard.

fcrochik

In the past I wrote a java parser for id3v2... can't seem to find the code but don't remember being too difficult of a task. Maybe you can create one for the community :)

jdbastardy

I can have a try on compile it for Symbian yep. But I am not an expert of Symbian build systems

milot.shala

Have you tried using taglib on Symbian? I don't know if it depends on kdelibs but I think its worth trying "http://developer.kde.org/~wheeler/taglib.html":http://developer.kde.org/~wheeler/taglib.html

goetz

Taglib looks quite promising. It has as .pro file for the Mac that could be adapted for Symbian, I think. I'm sure some guys here will help you with that. Maybe you'll have to wait a couple of days - many of them are on holidays at the moment :-)

jdbastardy

I had a look to taglib and I have tested building it with the .pro. It can be opened by Qt Creator too (obviously) and i was able to compile all the .o files. However I didn't get any lib.

goetz

Did you try to compile it on the command line?

@
cd taglib
qmake -spec spec-for-symbian
make
@

This should create a libTagLib.a in the directory taglib.

In Qt Creator, did you disable shadow builds? If not, it could be that the lib is in another directory!

milot.shala

I've used taglib before and as far as I know there are some little issues on Symbian, but on Desktop and Maemo it's working, so you should check some stuff as Volker suggested in order to get it working.

jdbastardy

I am going to try to compile from the command line when I get my project from the other PC and maybe I start to develop for Symbian using Linux.

Thank you so much guys. Now I can continue developing my MP3 player. It was almost impossible to cotinue without a Media Library (that's why I needed Taglib)

milot.shala

[quote author="Mattias Cibien" date="1293557242"]I am going to try to compile from the command line when I get my project from the other PC and maybe I start to develop for Symbian using Linux.

Thank you so much guys. Now I can continue developing my MP3 player. It was almost impossible to cotinue without a Media Library (that's why I needed Taglib)[/quote]

Good luck! And let us know if we could help anything :)

jdbastardy

I found out that QtMobility has the possibility of looking into some tags of a file. Check out QtMultimediaKit

silvansky

so, anybody have successfully build of taglib for symbian? i tried to do it myself, but failed =(

jdbastardy

I tried also. I have tested on both command line and Qt Creator. It has some problems with dllimport.

fcrochik

[quote author="Mattias Cibien" date="1294227779"]I tried also. I have tested on both command line and Qt Creator. It has some problems with dllimport.[/quote]

Mattias: you posted that Qt Mobility can do some of the parsing. What are the constraints or reasons not to use it?

jdbastardy

[quote author="fcrochik" date="1294236648"]
[quote author="Mattias Cibien" date="1294227779"]I tried also. I have tested on both command line and Qt Creator. It has some problems with dllimport.[/quote]

Mattias: you posted that Qt Mobility can do some of the parsing. What are the constraints or reasons not to use it?[/quote]

Since for enabling a sort of Media Libray function is almost a waste of memory to load on a temporary QMediaPlayer every mp3 in a folder to parse it's data.

fcrochik

Mattias: it may be worth a suggestion on JIRA or even a quick inspection of the source code for QMediaPlayer to figure out if there isn't a easy way to isolate this functionality.

It seems like a very basic need for anybody dealing with "music" files and should be "standard".

goetz

[quote author="Mattias Cibien" date="1294227779"]I tried also. I have tested on both command line and Qt Creator. It has some problems with dllimport.[/quote]

dllimport should only be an issue with windows builds, according to taglib/taglib_export.h, I'm not sure what's going on there. Neither _WIN32 nor _WIN64 should be defined.

jdbastardy

I have a look in .pro of taglib since in the .pro file there are some variables I cannot figure out. I am going to have a look when I get some spare time for developing

goetz

You can safely ignore the FRAMEWORK variables, they are only used for building frameworks on the Mac and ignored on other platforms.